service your cooling system if you have overheating issues.
a properly maintained cooling system can run until you need to stop for fuel without ever coming off plane.
I would say you could run flat out, however not on a stock recreational motor.
from my google fu
Within the 22/23 Upper, you can choose from five different gear ratios. Those are 1.43, 1.51, 1.60, 1.66 and 1.85. As for the Volvo SXM 21/26 upper, there are 1.79, 1.97 and 2.18 ratios
The ski nautique is a ski boat, not a wake boat
The moomba is also a ski boat, however you can add bladders and get a bit of a wake. Just don't add too much
If your desire is wake, then the moomba
I would have no problem with a 4.5hp pushing a 20' boat as a kicker.
My buddy used a 2.5 on his dinghy to push his 37' sailboat 4 miles when his Perkins died
I have access to a Honda weed wacker motor based outboard that moves my boat (granted, a bit slow)
Pull line from the drive with motor running either on muffs/hose or in the lake and aim it up. Water will be flowing out about 6-8" at an idle. Then reinstall and go boating
impellers need to be submerged when starting or fed by muffs. 20 seconds without a good water supply and they are toast
older than 5 years and they are toast
try to suck water from a bucket and they are toast.
marine thermostats are stainless. so use the correct one.
additionally, without...
End grain balsa is still used today in low volume boats. It adds a lot of strength (by spacing the layers of fiberglass) without adding more than a pound or two
Plywood would be heavy
Building up with fiberglass matt will be heavier
There are other core materials out there. Foam core, nida...